Veritas NetBackup™ Appliance Security Guide

Last Published:
Product(s): Appliances (3.1.2)
  1. About the NetBackup appliance Security Guide
    1.  
      About the NetBackup appliance Security Guide
  2. User authentication
    1. About user authentication on the NetBackup appliance
      1.  
        User types that can authenticate on the NetBackup appliance
    2. About configuring user authentication
      1.  
        Generic user authentication guidelines
    3.  
      About authenticating LDAP users
    4.  
      About authenticating Active Directory users
    5.  
      About authenticating Kerberos-NIS users
    6.  
      About the appliance login banner
    7. About user name and password specifications
      1.  
        About STIG-compliant password policy rules
  3. User authorization
    1.  
      About user authorization on the NetBackup appliance
    2. About authorizing NetBackup appliance users
      1.  
        NetBackup appliance user role privileges
    3.  
      About the Administrator user role
    4.  
      About the NetBackupCLI user role
  4. Intrusion prevention and intrusion detection systems
    1.  
      About Symantec Data Center Security on the NetBackup appliance
    2.  
      About the NetBackup appliance intrusion prevention system
    3.  
      About the NetBackup appliance intrusion detection system
    4.  
      Reviewing SDCS events on the NetBackup appliance
    5.  
      Running SDCS in unmanaged mode on the NetBackup appliance
    6.  
      Running SDCS in managed mode on the NetBackup appliance
  5. Log files
    1.  
      About NetBackup appliance log files
    2.  
      Viewing log files using the Support command
    3.  
      Where to find NetBackup appliance log files using the Browse command
    4.  
      Gathering device logs on a NetBackup appliance
    5.  
      Log Forwarding feature overview
  6. Operating system security
    1.  
      About NetBackup appliance operating system security
    2.  
      Major components of the NetBackup appliance OS
    3.  
      Vulnerability scanning of the NetBackup appliance
  7. Data security
    1.  
      About data security
    2.  
      About data integrity
    3.  
      About data classification
    4. About data encryption
      1.  
        KMS support
  8. Web security
    1.  
      About SSL usage
    2.  
      Implementing third-party SSL certificates
  9. Network security
    1.  
      About IPsec Channel Configuration
    2.  
      About NetBackup appliance ports
    3.  
      About the NetBackup Appliance firewall
  10. Call Home security
    1. About AutoSupport
      1.  
        Data security standards
    2. About Call Home
      1.  
        Configuring Call Home from the NetBackup Appliance Shell Menu
      2.  
        Enabling and disabling Call Home from the appliance shell menu
      3.  
        Configuring a Call Home proxy server from the NetBackup Appliance Shell Menu
      4.  
        Understanding the Call Home workflow
    3. About SNMP
      1.  
        About the Management Information Base (MIB)
  11. Remote Management Module (RMM) I security
    1.  
      Introduction to IPMI configuration
    2.  
      Recommended IPMI settings
    3.  
      RMM ports
    4.  
      Enabling SSH on the Remote Management Module
    5.  
      Replacing the default IPMI SSL certificate
  12. STIG and FIPS conformance
    1.  
      OS STIG hardening for NetBackup appliances
    2.  
      Unenforced STIG hardening rules
    3.  
      FIPS 140-2 conformance for NetBackup appliances
  13. Appendix A. Security release content
    1.  
      NetBackup Appliance security release content

OS STIG hardening for NetBackup appliances

The Security Technical Implementation Guides (STIGs) provide technical guidance for increasing the security of information systems and software to help prevent malicious computer attacks. This type of security is also referred to as hardening.

Starting with software version 3.1, you can enable OS STIG hardening rules for increased security. These rules are based on the following profile from the Defense Information Systems Agency (DISA):

STIG for Red Hat Enterprise Linux 7 Server - Version 0.1.31

To enable these rules, use the following command:

Main_Menu > Settings > Security > Stig Enable, followed by the maintenance password.

Note the following about enabling STIG:

  • When the option is enabled, a list of the enforced rules appears. The command output also shows exceptions to any rules that are not enforced.

  • This command does not allow individual rule control.

  • For appliances (nodes) in a high availability (HA) setup, this feature must be enabled manually on each node to ensure correct operation after a switchover.

  • Once the option is enabled, a factory reset is required to disable the associated rules.

  • If Lightweight Directory Access Protocol (LDAP) is configured, it is recommended that you set it up to use Transport Layer Security (TLS) before you enable the option.

Note:

If you have enabled the STIG feature on an appliance and you need to upgrade it or install an EEB on it, do not plan such installations during the 4:00am - 4:30am time frame. By following this best practice, you can avoid interrupting the automatic update of the AIDE database and any monitored files, which can cause multiple alert messages from the appliance.

The following describes the hardening rules that are enforced after the option is enabled. Each rule is identified by a Common Configuration Enumerator (CCE) identifier, a short rule description, and a Security Content Automation Protocol (SCAP) scanner severity level. Software version 3.1 addresses rules with high and medium scanner severity levels.

Rules enforced after enabling the option

  • CCE-27127-0: Enable randomized layout of virtual address space.

    Scanner severity level: Medium

  • CCE-26900-1: Disable core dumps for SUID programs.

    Scanner severity level: Low

  • CCE-27050-4: Restrict access to kernel message buffer.

    Scanner severity level: Low

  • CCE-80258-7: Disable the kdump kernel crash analyzer.

    Scanner severity level: Medium

  • CCE-27220-3: Build and test AIDE database.

    Scanner severity level: Medium

  • CCE-26952-2: Configure periodic execution of AIDE.

    Scanner severity level: Medium

  • CCE-27303-7: Modify the system login banner.

    Scanner severity level: Medium

  • CCE-27082-7: Set SSH client alive account.

    Scanner severity level: Medium

  • CCE-27314-4: Enable SSH warning banner.

    Scanner severity level: Medium

  • CCE-27437-3: Ensure auditd collects information on the use of privileged commands.

    Scanner severity level: Medium

  • CCE-27309: Set boot loader password.

    Scanner severity level: High

  • CCE-80374-2: Configure notification of AIDE scan results.

    Scanner security level: Medium

  • CCE-80375-9: Configure AIDE to verify Access Control Lists (ACLs).

    Scanner severity level: Medium

  • CCE-80376-7: Configure AIDE to verify extended attributes.

    Scanner severity level: Medium

  • CCE-27375-5: Configure auditd_space_left_action on low disk space.

    Scanner severity level: Medium

  • CCE-27341-7: Configure auditd to use audispd_syslog_plugin.

    Scanner security level: Medium

  • CCE-27353-2: Record events that modify the system discretionary access controls (fremovexattr).

    Scanner severity level: Medium

  • CCE-27410-0: Record events that modify the system discretionary access controls (lremovexattr).

    Scanner severity level: Medium

  • CCE-27367-2: Record events that modify the system discretionary access controls (removexattr).

    Scanner severity level: Medium

  • CCE-27204-7: Record attempts to alter the logon and logout events.

    Scanner severity level: Medium

  • CCE-27347-4: Ensure that auditd collects unauthorized access attempts to files.

    Scanner severity level: Medium

  • CCE-27447-2: Ensure that auditd collects information on successful exporting to media.

    Scanner severity level: Medium

  • CCE-27206-2: Ensure that auditd collects file deletion events by the user.

    Scanner severity level: Medium

  • CCE-27129-6: Ensure that auditd collects information on kernel module loading and unloading.

    Scanner severity level: Medium

  • CCE-27333-4: Set the password rule for maximum consecutive repeating characters.

    Scanner severity level: Medium

  • CCE-27512-3: Set the password rule for maximum consecutive repeating characters from the same character class.

    Scanner severity level: Medium

  • CCE-27214-6: Set the password strength for minimum digit (numeric) characters.

    Scanner severity level: Medium

  • CCE-27293-0: Set the password rule for minimum length.

    Scanner severity level: Medium

  • CCE-27200-5: Set the password strength for minimum uppercase characters.

    Scanner severity level: Medium

  • CCE-27360-7: Set the password strength for minimum special characters.

    Scanner severity level: Medium

  • CCE-27345-8: Set the password strength for minimum lowercase characters.

    Scanner severity level: Medium

  • CCE-26631-2: Set the password strength for minimum different characters.

    Scanner severity level: Medium

  • CCE-27115-5: Disable modprobe loading of the USB storage driver.

    Scanner severity level: Medium

  • CCE-27350-8: Set the number of failed password attempts to deny access.

    Scanner severity level: Medium

  • CCE-80353-6: Configure the root account for failed password attempts.

    Scanner severity level: Medium

  • CCE-26884-7: Set the lockout time for failed password attempts.

    Scanner severity level: Medium

  • CCE-27297-1: Set the interval for counting failed password attempts.

    Scanner severity level: Medium

  • CCE-27002-5: Set the password minimum age.

    Scanner severity level: Medium

  • CCE-27051-2: Set the password maximum age.

    Scanner security level: Medium

  • CCE-27081-9: Limit the number of concurrent login sessions allowed for each user.

    Scanner severity level: Low

Rules always enforced

The following rules are always enforced and cannot be disabled. Hardening of these rules complies with the specifications described in "NIST Special Publication 800-123". For more information, refer to the following:

http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-123.pdf

  • CCE-80165-4: Configure the kernel parameter to ignore ICMP broadcast echo requests.

    Scanner severity level: Medium

  • CCE-80156-3: Disable the kernel parameter for sending ICMP redirects by default.

    Scanner severity level: Medium

  • CCE-80156-3: Disable the kernel parameter for sending ICMP redirects for all interfaces.

    Scanner severity level: Medium

  • CCE-27212-0: Enable auditing for the processes that start before the audit daemon.

    Scanner severity level: Medium

  • CCE-26957-1: Ensure that the Red Hat GPG key is installed.

    Scanner severity level: High

  • CCE-27096-7: Ensure that the AIDE package is installed.

    Scanner severity level: Medium

  • CCE-27351-6: Install the screen package.

    Scanner severity level: Medium

  • CCE-27268-2: Restrict serial port root logins.

    Scanner severity level: Low

  • CCE-27318-5: Restrict virtual console root logins.

    Scanner severity level: Medium

  • CCE-27401-9: Disable telnet service

    Scanner severity level: High

  • CCE-27471-2: Disable SSH access without a password.

    Scanner severity level: High

  • CCE-27286-4: Prevent login to accounts without a password.

    Scanner severity level: High

  • CCE-27511-5: Disable Ctrl-Alt-Del reboot activation.

    Scanner severity level: High

  • CCE-27320-1: Allow only SSH protocol version 2.

    Scanner severity level: High

  • CCE-27294-8: Do not allow direct root logins.

    Scanner severity level: Medium

  • CCE-80157-1: Disable the kernel parameter for IP forwarding.

    Scanner severity level: Medium

  • CCE-80158-9: Configure the kernel parameter for accepting ICMP redirects for all interfaces.

    Scanner severity level: Medium

  • CCE-80163-9: Configure the kernel parameter for accepting ICMP redirects by default.

    Scanner severity level: Medium

  • CCE-27327-6: Disable the Bluetooth kernel modules.

    Scanner severity level: Medium

  • CCE-80179-5: Configure the kernel parameter for accepting source-routed packets for all interfaces.

    Scanner severity level: Medium

  • CCE-80220-7: Disable the GSSAPI authentication.

    Scanner severity level: Medium

  • CCE-80221-5: Disable the Kerberos authentication.

    Scanner severity level: Medium

  • CCE-80222-3: Enable the use of strict mode checking.

    Scanner severity level: Medium

  • CCE-80224-9: Disable compression or set compression to delayed.

    Scanner severity level: Medium

  • CCE-27455-5: Use only FIPS approved MACs.

    Scanner severity level: Medium

  • CCE-80378-3: Verify the user that owns /etc/cron.allow.

    Scanner severity level: Medium

  • CCE-80379-1: Verify the group that owns /etc/cron.allow.

    Scanner severity level: Medium

  • CCE-80372-6: Disable SSH support for user-known hosts.

    Scanner severity level: Medium

  • CCE-80373-4: Disable SSH support for rhosts RSA authentication.

    Scanner severity level: Medium

  • CCE-27363-1: Do not allow SSH environment options.

    Scanner severity level: Medium

  • CCE-26989-4: Ensure that gpgcheck is globally activated.

    Scanner severity level: High

  • CCE-80349--4: Ensure installed OS is certified.

    Scanner severity level: High

  • CCE-27175-9: No uid except zero (get a better description).

    Scanner severity level: High

  • CCE-27498-5: Disable the auto-mounter.

    Scanner severity level: Medium

  • CCE-80134-0: No files not owned by user.

    Scanner severity level: Medium

  • CCE-80135-7: No file permissions not owned by group.

    Scanner severity level: Medium

  • CCE-27211-2: sysctl_kernal_exec_shield.

    Scanner severity level: Medium

  • CCE-27352-4: Verify that all account password hashes are shadowed.

    Scanner severity level: Medium

  • CCE-27104-9: Set the password hashing algorithm systemauth.

    Scanner severity level: Medium

  • CCE-27124-7: Set the password hashing algorithm logindefs.

    Scanner severity level: Medium

  • CCE-27053-8: Set the password hashing algorithm libusercon.

    Scanner severity level: Medium

  • CCE-27078-5: Disable pre-linking software.

    Scanner severity level: Low

  • CCE-27116-3: Install the PAE kernel on supported 32-bit x86 systems.

    Scanner severity level: Low

  • CCE-27503-2: All GIDs referenced in /etc/password must be defined in /etc/group.

    Scanner severity level: Low

  • CCE-27160-1: Password pam retry.

    Scanner severity level: Low

  • CCE-27275-7: Display login attempts.

    Scanner severity level: Low

  • CCE-80350-2: Remove no_authenticate on sudo.

    Scanner severity level: Medium

  • CCE-26961-3: Ensure SELinux is not disabled in /etc/default/grub.

    Scanner severity level: Medium

See Unenforced STIG hardening rules.